The positive clones were screened by G418.The proliferation,migration,and invasion of MDA-MB-231 cells before and after transfection were assessed by CFSE-flow cytometry,monolayer wound healing assay,and soft agar colony formation test.

• 应用CFSE-流式细胞仪检测,单层伤口愈合实验,软琼脂克隆形成实验等方法观察了MDA-MB-231细胞转染前后,细胞体外增殖及侵袭能力等指标的变化。